Bacteriochlorophyll c-binding protein (IPR001470)

Overlapping homologous superfamilies

Family relationships

None.

Description

Chlorosomes, which are attached to the inner surface of the cytoplasmic membrane, consist of four polypeptides and associated pigments and lipids. The principal light-harvesting pigment of the green filamentous bacterium Chloroflexus aurantiacus is bacteriochlorophyll (Bchl) c. This pigment is either bound to, or constrained by, a small approximately 80-residue polypeptide designated Bchlc-binding protein. In C. aurantiacus, a C-terminal extension is believed to play a role in proper incorporation of the protein during chlorosome assembly [PMID: 2376566]. The protein has a high degree of similarity to Bchlc-binding proteins of other photosynthetic bacteria.